Blue and green second harmonic generation in poled polymer on the inorganic crystal substrate

Eung Soo Kim, Hirouki Sakurai, Takeshi Kinoshita, Keisuke Sasaki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Optical second harmonic generation in the form of Cerenkov radiation is investigated using KH2PO4 (KDP) substrate and poled polymer thin film waveguide. The copolymer of MMA and DR1-substituted methacrylate molecules were oriented by corona poling precess after spin coating on the KDP substrate. The conversion efficiency strongly depends on the waveguide geometry. The high conversion effficency is obtained by theoriucal analysis when the nonlinear optical coefficient direction of a substrate is opposite to that of a waveguiding layer. In experiment, we haveconfirmed that the SH power by Cerenkov type phase matching using KDP crystal as a substrate is larger than that of using pyrex as a substrate.

Original languageEnglish
Pages (from-to)65-70
Number of pages6
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume280
Publication statusPublished - 1996

Fingerprint

Harmonic generation
harmonic generations
Polymers
Crystals
polymers
Substrates
crystals
Waveguides
Cerenkov radiation
waveguides
Phase matching
Methacrylates
Spin coating
borosilicate glass
phase matching
Polymer films
coronas
Conversion efficiency
coating
copolymers

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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AU - Kim, Eung Soo

AU - Sakurai, Hirouki

AU - Kinoshita, Takeshi

AU - Sasaki, Keisuke

PY - 1996

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AB - Optical second harmonic generation in the form of Cerenkov radiation is investigated using KH2PO4 (KDP) substrate and poled polymer thin film waveguide. The copolymer of MMA and DR1-substituted methacrylate molecules were oriented by corona poling precess after spin coating on the KDP substrate. The conversion efficiency strongly depends on the waveguide geometry. The high conversion effficency is obtained by theoriucal analysis when the nonlinear optical coefficient direction of a substrate is opposite to that of a waveguiding layer. In experiment, we haveconfirmed that the SH power by Cerenkov type phase matching using KDP crystal as a substrate is larger than that of using pyrex as a substrate.

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